J. S. Cosano

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This paper describes an integrated flow injection (FI) system for the determination of ammonia, sulphate and Fe(II)/Fe(III) which can work unattended for long periods. The system was designed for the determination of individual analytes in long series of samples. Each batch of samples requires manual selection of parameters and units, such as wavelength for(More)
This paper describes a simple flow-injection (FI) manifold for the determination of a variety of species in industrial water. The chemical systems involved in the determination of ammonia (formation of Indophenol Blue), sulfate (precipitation with Ba(II)), and iron (complexation with 1,10-phenanthroline with the help of a prior redox reaction for(More)
The possibilities of jow injection analysis for the on-line monitoring of dissolution tests are illustrated by using a very straightforward manifold to monitor tablets of ascorbic acid dissolving at different rates. The dissolution kinetics can be monitored at an adequate samplingfrequency as the method allows up to 90 samples to be processed per hour. Flow(More)
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